如何在Azure DevOps Pipelines中正确运行和使用Docker?

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英文:

How properly run and use Docker in Azure Devops Pipelines?

问题

我尝试在流水线中运行一个 Docker 容器,首先我尝试使用文档:https://learn.microsoft.com/en-us/azure/devops/pipelines/tasks/reference/docker-v2?view=azure-pipelines&viewFallbackFrom=azure-devops&tabs=yaml#troubleshooting 但仍然遇到错误。

看起来我的流水线成功下载了一个 Docker 文件,但当我尝试在 Docker 文件中执行任何命令时,我会遇到错误。

steps:
    - checkout: self
      clean: true
      fetchDepth: full

    - task: Docker@2
      displayName: 登录到 ACR
      inputs:
        containerRegistry: 'Docker'
        command: 'login'
    
    - script: |
        docker run -d docker.io/Docker/Sample-docker-image
      displayName: '运行 Docker'

    - task: Docker@2
      inputs:
        containerRegistry: 'Docker'
        command: 'start'
        container: 'Docker/Sample-docker-image'

当我运行这个时,我得到以下错误信息:

Error response from daemon: No such container: ***/Docker/Sample-docker-image
Error: failed to start containers: ***/Docker/Sample-docker-image
##[error]Error response from daemon: No such container: ***/Docker/Sample-docker-image
##[error]Error: failed to start containers: ***/Docker/Sample-docker-image
##[error]进程 '/usr/bin/docker' 以退出码 1 失败

如何处理和正确使用 Docker?我在这个 YAML 文件中做错了什么?

编辑:
我添加了以下内容:

container_id=$(docker run -d Docker/Sample-docker-image)
echo "Container ID: $container_id"
echo "##vso[task.setvariable variable=container_id]$container_id"
container_id=$(echo $container_id)
       
while [[ "$(docker inspect -f '{{.State.Status}}' $container_id)" != "running" ]]; do
  docker inspect $container_id
  docker logs $container_id
  sleep 10
  docker ps -a
done

它显示 Docker 启动后处于退出状态。我在本地尝试过,每个镜像都按预期工作。

英文:

I tried do run a docker in pipeline ,first i tried to use documentation : https://learn.microsoft.com/en-us/azure/devops/pipelines/tasks/reference/docker-v2?view=azure-pipelines&viewFallbackFrom=azure-devops&tabs=yaml#troubleshooting but still got errors

Its looks like my pipeline properly download a docker file but when i try to exec any command in docker file i got errors

steps:
    - checkout: self
      clean: true
      fetchDepth: full

    - task: Docker@2
      displayName: Login to ACR
      inputs:
        containerRegistry: 'Docker'
        command: 'login'
    
    - script: |
        docker run -d docker.io/Docker/Sample-docker-image
      displayName: 'Run Docker'

    - task: Docker@2
      inputs:
        containerRegistry: 'Docker'
        command: 'start'
        container: 'Docker/Sample-docker-image'

when i run this i got

Error response from daemon: No such container: ***/Docker/Sample-docker-image
Error: failed to start containers: ***/Docker/Sample-docker-image
##[error]Error response from daemon: No such container: ***/Docker/Sample-docker-image
##[error]Error: failed to start containers: ***/Docker/Sample-docker-image
##[error]The process '/usr/bin/docker' failed with exit code 1

How to handle and properly use a docker ? Im doing something wrong in this yml ?

Edit:
i added

        container_id=$(docker run -d Docker/Sample-docker-image)
        echo "Container ID: $container_id"
        echo "##vso[task.setvariable variable=container_id]$container_id"
        container_id=$(echo $container_id)
       
        while [[ "$(docker inspect -f '{{.State.Status}}' $container_id)" != "running" ]]; do
          docker inspect $container_id
          docker logs $container_id
          sleep 10
          docker ps -a
        done

and it shows docker starts as exited status. i tried locally and every image works as expected

答案1

得分: 0

以下是在 Docker 镜像上执行命令的步骤。

步骤 1: 如果容器注册表是私有的,请创建一个服务连接。对于公共注册表,不需要服务连接。
如何在Azure DevOps Pipelines中正确运行和使用Docker?

步骤 2: 在流水线的资源部分指定容器,并将服务连接的名称添加为如下所示的端点。

resources:
 containers:
   - container: acr-customimg
     image: cleveracr.azurecr.io/customimg:latest
     endpoint: ACR-endpoint

步骤 3: 将容器资源添加为要在 Docker 容器上执行的步骤的目标。

- script: echo hostname
  displayName: '在 Docker 容器中运行脚本'
  target: 
   container: acr-customimg

以下是完整的流水线代码。

trigger: none

pool:
  vmImage: ubuntu-latest

resources:
 containers:
   - container: acr-customimg
     image: cleveracr.azurecr.io/customimg:latest
     endpoint: ACR-endpoint

steps:
- script: echo hostname
  displayName: '在 Azure 代理中运行脚本'

- script: echo hostname
  displayName: '在 Docker 容器中运行脚本'
  target: 
   container: acr-customimg

当我运行此流水线时,它首先从容器注册表获取镜像,然后启动容器。第一步将在Azure 代理上执行,而第二步将在Docker 容器上执行

参考资料:

  1. 定义容器作业 | Microsoft 文档
  2. 步骤目标 | Microsoft 文档
英文:

Below are the steps to execute a command on the docker image.

Step 1: Create a service connection to the container registry if it is private. For public registries, a service connection is not required.
如何在Azure DevOps Pipelines中正确运行和使用Docker?

Step 2: Specify the container in the resources section of the pipeline and add the service connection name as the endpoint as shown below.

resources:
 containers:
   - container: acr-customimg
     image: cleveracr.azurecr.io/customimg:latest
     endpoint: ACR-endpoint

Step 3: Add the container resource as the target to the steps you would like to execute on the docker container.

- script: echo hostname
  displayName: 'run script in docker container'
  target: 
   container: acr-customimg

Below is the full pipeline code.

trigger: none

pool:
  vmImage: ubuntu-latest

resources:
 containers:
   - container: acr-customimg
     image: cleveracr.azurecr.io/customimg:latest
     endpoint: ACR-endpoint

steps:
- script: echo hostname
  displayName: 'run script in azure agent'

- script: echo hostname
  displayName: 'run script in docker container'
  target: 
   container: acr-customimg

When I run this pipeline, it first fetches the image from the container registry and then start the container. The first step will execute on the azure agent while the second step will execute on the docker container.

References:

  1. Define container jobs | Microsoft doccumentation
  2. Step target | Microsoft doccumentation

答案2

得分: 0

谢谢你的回答。我只犯了一个错误,我漏掉的只是一个字母 -t

docker run -t -d --name my-container

这解决了一个问题,容器正在运行,我能够运行docker exec。

英文:

Thank you for answers. I made mistake only thing which i missed is a letter -t

docker run -t -d --name my-container 

This solved a issue, container is running and im able to run docker exec

huangapple
  • 本文由 发表于 2023年5月28日 12:08:16
  • 转载请务必保留本文链接:https://go.coder-hub.com/76349895.html
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